I think Conan is much better in this regard as you can update the recipe on Conan Center so changes could be reflected there
But I know only Conan well, not other C/C++ package managers
On the other hand I like Conan - I was able to build Qt demos on Windows with Conan, which built Qt5 for me
So building Blend2D and all demos could be pretty user friendly with it
Blend2D is not a problem alone - it's worse when you want more dependencies
very very handy on windows
gh ci uses it too, cross builds for win arm as well
with vc, it is supposed to work on mingw or Linux but I never tried
since earlier this year, the vcpkg.json now can have many versions, each referring to different src
the problem of single-version approach is that if a dependency is updated, and the update breaks API, then all dependents break too
my problem is when I try to use those .lib files in another project
I'm trying to use MSVC to link in those libs, so no CMAKE in this case
I followed this same process to successfully build wxWidgets static libraries that work just fine when I try to use them in other projects:
- run the included CMAKE script with appropriate options selected to generate MSVC project files that will emit static libraries when built
- open the CMAKE-generated MSVC project and build a debug or release ".lib" file depending on what build target I select
- create new MSVC project; add path to wxWidgets header files in the compiler options; add path to library files in linker options
- write a basic hello world program that includes the wxWidgets headers and uses wxWidgets functionality -- MSVC links in the appropriate symbols and the resulting program works
For some reason, when I follow these same steps for Blend2d, MSVC complains about missing symbols. I'm just trying to understand why
@kobalicek yeah, the support is basic. Far from what we can have with other. But it is wide spread lately and sort a lot of windows users compilation issues for them lately. I am trying to reach out with my old colleagues at the vc team and see what's their roadmap. Not much missing :)
@rspeir did you check if BLEND2D_STATIC is set correctly?
I wasn't clear whether that had to be set for projects that USE the libraries or if it was just for generating the libraries
Thank you for your help!
Hi, i've tried this code in fiddler and it outputs the desired result, but in Visual Studio 2019 the second gradient is solid red. However if I increase the gradient alpha slightly to gradientB.addStop(0.5, BLRgba32(0x01FF0000)) the transparency works. Is there any reason why VS won't work with zero alpha? Not sure if it's a bug
BLImage render(const BLContextCreateInfo& cci) {
BLImage img(400, 400, BL_FORMAT_PRGB32);
BLContext ctx(img, cci);
BLPath path;
path.moveTo(100,100);
path.lineTo(300,100);
path.lineTo(300,300);
path.lineTo(100,300);
ctx.clearAll();
ctx.setCompOp(BL_COMP_OP_SRC_OVER);
BLGradient gradient(BLRadialGradientValues(200, 200, 200, 200, 100));
gradient.addStop(0.0, BLRgba32(0xFFFFFFFF));
gradient.addStop(1.0, BLRgba32(0xFF2F5FDF));
ctx.setFillStyle(gradient);
ctx.fillPath(path);
BLGradient gradientB(BLRadialGradientValues(200, 200, 200, 200, 100));
gradientB.addStop(0.5, BLRgba32(0x00FF0000));
gradientB.addStop(1.0, BLRgba32(0xFFFF0000));
ctx.setFillStyle(gradientB);
ctx.fillPath(path);
return img;
}
Are you on master or beta release?
Hi Petr, it should be the master that I downloaded from github today, unless I accidentally built beta16. I noticed this back in beta9 but assumed I was doing something wrong, until it worked in fiddler today. So I updated the lib and tried again before reporting it. I can't easily show the same code because i'm using classes/functions etc but i'm definitely using the same hex value and i'm not converting another value to hex,, the hex value is entered directly into the BLRgba32(). What I find is alpha 0x00FF0000 renders the same as 0xFFFF0000, but everything between 0x01FF0000 and 0xFFFF0000 works fine. Hope this makes sense, would you like me to test both beta16 and master?
Ok, i'm downloading from here: https://github.com/blend2d/blend2d and will test using only that. When I deleted all the old versions earlier, the project wouldn't compile, it was somehow finding the old lib. I'll let you know soon, i'm working late tonight
Hi, again! I was wondering: Which approach would you recommend to create a static grid in a scene? Essentially like the grid here: https://github.com/cair/deep-line-wars-2/raw/master/docs/images/showcase_1.png . SFML has some nifty grid features, but I'm looking to porting the rendering to blend2d :)
